1996 Buick Riviera Owner's Manual - Page 271

Tire Inspection and Rotation Tires should be inspected every 6,000 to 8,000 miles (10 000 to 13 000 kn for any signs unusual wear. r) of If unusual wearis present, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See "When-It's Time for New Tires" and ''Wheel Replacement" later this sectionfor in more information. When rotatingyour tires, always use- the correct rotation pattern shown-here. Don't include the compact spare tire in your tire rotation. After the tireshave been rotated, adjust the front and as rear inflation pressures shown on the Tixle-L:oading Information label. Make certain 'that all wheel nuts + e properly tightened. See "Wheel Nut Torque" w in the Index. I - The purposeof regular rotationis to -achieve more uniform wear for all tires on the vehicle. The first rotation is the most important.See "Scheduled Maintenance Services"in the Index for scheduled rotation intervals. Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel become loose nuts after a time. The wheel could come and cause off an accident. When you changea wheel, remove any rust or dirt from places where the- wheel attaches to the vehicle, In anemergency, youcan use a cloth or a paper towel to do this;but be sure to usea scraper or wire brush later, if you off, need to, to all the rust or dirt (See get 'Changing a Flat Tire" in the Inclex.) 6-42